多线程- 铁路售票学习实现runnablej接口

Posted 2021-01-02

/**
     * @param args
     * 火车站卖票的例子用实现Runnable接口
     */
    public static void main(String[] args) {
        MyTicket mt = new MyTicket();
        new Thread(mt).start();
        new Thread(mt).start();
        new Thread(mt).start();
        new Thread(mt).start();

        /*Thread t1 = new Thread(mt);               //多次启动一个线程是非法的
        t1.start();
        t1.start();
        t1.start();
        t1.start();*/
    }

}

class MyTicket implements Runnable {
    private int tickets = 100;
    @Override
    public void run() {
        while(true) {
            synchronized(this) {
                if(tickets <= 0) {
                    break;
                }
                try {
                    Thread.sleep(10);               //线程1睡,线程2睡,线程3睡,线程4睡
                } catch (InterruptedException e) {

                    e.printStackTrace();
                }
                System.out.println(Thread.currentThread().getName() + "...这是第" + tickets-- + "号票");
            }
        }
    }
}